#. select in the Main Menu *Sketch - > Middle point* item or
#. click |middlepoint.icon| **Middle point** button in Sketch toolbar:
+There are 2 algorithms for creation of a middle constraint:
+
+.. figure:: images/MiddlePoint.png
+ :align: left
+ :height: 24px
+
+**By object and point** create a middle constraint by object (segment or arc) and point
+
+.. figure:: images/MiddlePoint_obj.png
+ :align: left
+ :height: 24px
+
+**By object** create a middle point on the object (segment or arc)
+
+-------------------------------------------------------------------------------------------
+
+By object and point
+""""""""""""""""""""""""""
Property panel:
-.. figure:: images/Middlepoint_panel.png
+.. figure:: images/Middlepoint_obj_point_panel.png
:align: center
Input fields:
Created Middle point constraint appears in the view.
-.. figure:: images/Middlepoint_res.png
+.. figure:: images/Middlepoint_obj_point_res.png
+ :align: center
+
+ Created middle point constraint
+
+By object
+""""""""""""""""""""""""""
+Property panel:
+
+.. figure:: images/Middlepoint_obj_panel.png
+ :align: center
+
+Input fields:
+
+- **Object** is a line selected in the view.
+
+| After the object are selected, will be created auxiliary point on the middle of the line.
+| The middle points are marked with a special sign.
+
+**TUI Command**:
+
+.. py:function:: SketchPoint_1 = Sketch_1.setMiddlePoint(Line)
+
+ :param object: A line.
+ :return: Created middle point.
+
+Result
+""""""
+
+Created Middle point constraint appears in the view.
+
+.. figure:: images/Middlepoint_obj_res.png
:align: center
Created middle point constraint